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Algol / ˈælɡɒl /, [ 12 ] designated Beta Persei (β Persei, abbreviated Beta Per, β Per), known colloquially as the Demon Star, is a bright multiple star in the constellation of Perseus and one of the first non- nova variable stars to be discovered.
Published: February 27, 2024 at 12:48 am. Ask any astronomer to name the most famous variable star in the sky and many will say Algol, the eclipsing binary in Perseus whose variations were first reported in 1670 by the Italian astronomer Geminiano Montanari.
22 kwi 2020 · Algol, Beta Persei (β Per) is a triple star system located in the constellation Perseus. Commonly known as the Demon Star, it is one of the best-known variable stars in the sky and a prototype for a class of eclipsing variable stars known as Algol variables.
The star’s traditional name, Gorgonea Tertia, refers to the myth of Perseus and the Gorgons. It represents the third Gorgon sister in the constellation. Rho Persei is visible to the unaided eye.
25 mar 2015 · The star Mirfak is also known as Algenib, with their names derived from the Arabic for “elbow” and “flank” respectively. – Algol (Beta Persei), the second brightest star in Perseus, appears red in the night sky, but is actually a triple star system composed of two blue and one orange-red stars. The system is located 92.95 light years ...
Algol is a bright eclipsing binary system located in the northern constellation of Perseus and one of the best-known variable stars in the sky. Often referred to as the "Demon Star", most of the time it shines at magnitude +2.1 but every two days, 20 hours and 49 minutes it suddenly dips in brightness to mag. +3.4, remaining dim for about 10 ...
Beta Persei, better known as Algol, is the premier eclipsing binary star of the northern sky. This is because it can be observed with the unaided eye and it has a relatively short period of less than three days. You can check on it whenever you step outdoors on nights when Perseus is in view.
